An Open-Source JavaScript Library for Mobile-Friendly Interactive Maps

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3
votes
1answer
118 views

Zoom in to see details

I have 2 shape files, one that shows all the counties on an island, the other shows all the villages on the island. Here is the scenario: My initial map shows the counties. When you click on a ...
3
votes
1answer
2k views

How to use Leaflet Marker Cluster on markers from Leaflet-layerJSON (Overpass API)

I'm having troubles getting the Leaflet Marker Cluster working with Leaflet-layerJSON. I'm trying to make a Leaflet map with data from OpenStreetMap. The markers are showing on the map, but they are ...
3
votes
2answers
908 views

Leaflet highlight feature by ID

I have a map application where: I load polygons as GeoJSON objects I draw all polygons in a single layer I highlight a polygon on mouse hover What I need to do is the following: on mouse hover, I ...
3
votes
1answer
2k views

Change default leaflet marker color

I'm using esri-leaflet, and leaflet inherently to add a point feature class (geojson) to a map. What is the best way to add and style the layer? I've see pointToLayer on the leafletjs.com, but don't ...
3
votes
1answer
2k views

Which plugin can draw topoJson right within Leaflet without conversion?

I already have asked how to reduce file size and increase performance for publishing spatial data on the web using Leaflet, here. A conversion to TopoJSON has reduced the file size by approximately ...
3
votes
1answer
376 views

How can I use Leaflet with esri-leaflet and ArcGIS Online services

I've used public ArcGIS Online services plenty of times in ESRI JS web apps and I imagine that using them as layers in Leaflet is pretty much the same. The one problem I can see is how would one ...
3
votes
1answer
565 views

Options for getting data from SQL Server into Leaflet app?

I have polygon data in SQL Server 2012 that I need to get onto a Leaflet application - we're not talking thousands of polygons, but simplified U.S. counties where only one state will be displayed at a ...
3
votes
1answer
780 views

Drag marker from outside to leaflet map

Is there any way to drag a marker from outside to the map using leaflet Api . Any suggestions plese help me?
3
votes
1answer
513 views

Does leaflet support KML Ground Overlays?

I found an example showing KML overlays at http://harrywood.co.uk/maps/examples/leaflet/kml.html but it only plots vector layer using polygons. Is there any way to plot Ground overlays of KML (like ...
3
votes
1answer
2k views

select two markers & draw line between them in leaflet

I am very much new to leaflet. I have multiple markers plotted on my map in leaflet. now I have to draw line between two markers when I select them. Can any one help in doing this.
3
votes
1answer
3k views

CloudMade Routing with Leaflet: route is not displayed

I am trying to consume the CloudMade routing API using Leaflet. So far, I have managed to pass points and receive a response, and parse that response into an array of points. The array of points is ...
3
votes
2answers
1k views

Leaflet WMTS layer

I would like to start using Leaflet instead of OpenLayers, but I can't find a way to load WMTS layer into the map. Is that possible with Leaflet, or do I have to stick with OL? I haven't found ...
3
votes
1answer
4k views

How to set up a layer control using Leaflet?

I have been working on a mapping application using Leaflet. I am using a WMS on Geoserver to get my layers, which are overlaid on a cloudmade basemap. I tried to use the layer control on my map by ...
3
votes
1answer
196 views

How to set up a maximal zoom for polygons in Leaflet?

How to set up a maximal zoom for some layer, for example state polygons? I need that my US polygons which represent states have maxZoom 6, and when zoomed higher than 6, that US counties show up ...
3
votes
1answer
185 views

d3 + Leaflet apply class value from geojson data

I have a geojson file that I'l able to draw just fine with D3 + Leaflet. I'm having trouble applying a class to the svg objects with a value from the geojson file. Each feature in the geojson file has ...
3
votes
1answer
186 views

How to display UtfGrid info

first off sorry if this question have been asked, I have been looking for an answer for some time now but cant find any solution. I have created a .mbtiles file with Tilemill, extracted the .png and ...
3
votes
2answers
777 views

Leaflet geoJson in front of markers in a FeatureGroup

I am loading some markers and json data to a leaflet map. I need to get my json in front of the markers. I have tried placing the markers and json in seperate FeatureGroups and then tried ...
3
votes
1answer
168 views

Handling Popups in Leaflet with Overlapping Features

I am new to Leaflet as well as Javascript, and I'm looking for some advice on a basic topic. Currently, I am trying to create a spatial index of library holdings for old topographic maps that people ...
3
votes
1answer
1k views

Leaflet add and remove legends with layer selection

I'm new to Leaflet/Javascript and have been struggling to get legends a map to show only when a specific layer is selected from the layer control. I have three layers, one of which I would like to ...
3
votes
1answer
370 views

leaflet choropleth map using dynamic value

I am doing a choropleth map using leaflet and JSON data. I got a clean tutorial in leaflet site. In that tutorial the used us-states.js JSON file where the choropleth was based on the ...
3
votes
1answer
1k views

display a choropleth map using D3 and Leaftlet

I am trying to get a leaflet map to display a choropleth map using d3. I have written this code using samples I have found however the map just displays as the black fill, not the color classes I ...
3
votes
1answer
889 views

reusing cached tiles with leaflet, mbtiles and mbtiles-php

I am using Leaflet and infostream's fork of mbtiles-php to serve MBTiles stored on my server. I'm using a Leaflet layer group (and a layer control) to serve two MBTiles files. When I toggle between ...
3
votes
1answer
63 views

How to create an exact tracking route from GPS data with animated icon?

Probably this is not purely GIS related question, its related to developing issues. I am just asking if there is any kind of suggestions from Gurus. I am building an tracking application where GPS ...
3
votes
0answers
49 views

Solution for Test Automation for web gis/mapping application?

I've to find a solution for test automation for web gis/mapping application that using OpenLayers 2.x or Leaflet as javascript libraries. I'm oriented on evaluate Selenium WebDriver (or other similar ...
3
votes
0answers
97 views

What is the openlayer.js alternative of unloadinvisibletiles of leaflet.js

I am using open layers with a tile server. I want to load maps while panning and destroy the loaded region when out of screen (Alternative to unloadinvisibletiles of leaflet.js) How am i suppose to ...
3
votes
0answers
104 views

Adding an offset to a Leaflet TileLayer on the fly

I'm currently using Leaflet to display 18th century maps of Belgium as a base layer with a vector overlay of the present day road system. Although the maps are absolutely gorgeous ...
3
votes
1answer
128 views

Leaflet change color dynamically

I am new with leaflet and I need help to change the color of a polygon on a choropleth map dynamically. In my website I have an slider, and depending on the position of the handle, the colors of the ...
3
votes
0answers
131 views

Leaflet Marker Dragend Bug/Difficulty

I am having a problem with leaflet markers. The problem is that when I drag a marker with a lower z-index under another marker with a higher z-index and let it go, it makes another marker. I have a ...
3
votes
0answers
1k views

How can a leaflet SVG overlay be placed outside of the leaflet-overlay-pane?

I have SVG on top of GeoJSON in my map. How can a leaflet SVG overlay be placed outside of the leaflet-overlay-pane while keeping GeoJSON in place in the leaflet-overlay-pane? (For example, how could ...
3
votes
0answers
628 views

Using Custom Map Projection On Leaflet

I have an application displaying a EPSG:3414 map running on Openlayers - jsfiddle working sample that works. I am trying to implement the same on Leaflet - jsfiddle non-working, it is not working as ...
3
votes
2answers
418 views

leaflet geojson contextmenu

I want to add a context menu on right click for various elements on my geojson layer (I'm doing a road map so on a right click on the road at any part I want to show the context menu). I've managed ...
3
votes
0answers
289 views

How do I format tilelayer.wms url properties such that I add an overlay iteratively to my base map in leaflet

My base map was created using hard-coded template variables. I am using the leaflet tilelayer.wms constructor and including the url like so: url: ...
3
votes
0answers
935 views

leaflet - Drawing line following the road

Short version: What I wish to be able to do is drawing a polyline along part of a road. In that way marking certain houses, along this road. Long Version: I have several houses that I wish to mark ...
3
votes
0answers
1k views

How to serve OpenStreetMap Tiles locally using ArcGIS Server 10?

We want to serve OpenStreetMap Tiles locally using ArcGis Server 10 to use as base maps in our ESRI Silverlight and Flex GIS clients. We've downloaded our regions OSM file and created PNGs using ...
3
votes
0answers
412 views

How do I pass a LatLng Bounds from Leaflet to Mapfish Print?

I successfully fired up a MapFish print server on Elastic Beanstalk, and it prints out the sample spec files fine, but I'm trying to pass bounds from my Leaflet frontend now, and encountering a lot of ...
2
votes
2answers
657 views

Do the recent developments in the Google Maps API replace necessity of OpenLayers?

I think the main drawback of the Google Maps API is that we can't add our own vector data or raster imagery as one of the layers in the map. Is this correct? Or is there any alternative in the Google ...
2
votes
3answers
3k views

get latitude & longitude as per address given for leaflet

In my project I am using leaflet to display points. I am getting address from my database & want to show point for that particular address. I dident found anything which will give me latitude ...
2
votes
1answer
2k views

How to insert new line text in popup

I'm using Leaflet Marker Cluster and I need to show five different lines in a popup. But when I write this, they are all in the same line. Can someone help me to be one under another? var a = ...
2
votes
3answers
100 views

qgis2leaf exporting transparent polygons as all black

I am creating a qgis2leaf webmap from QGIS 2.8.1. It is comprised of several polygon and point layers. I am able to make my polygon layers semi transparent, but not 100% transparent. I want to be ...
2
votes
1answer
80 views

Navigate two leaflet maps

I am looking for an example where there would be multiple map divs containing leaflet maps. When one is panned I want the other one to pan or zoom with it so they are always in sync.
2
votes
2answers
126 views

zoom over vector in leaflet

I have created a map from geojson file of administrative boundaries (polygons layer). Similar to this example. When the mouse is over the polygon feature, the cursor changes from hand to finger. In ...
2
votes
3answers
66 views

GeoJSON Rendering in Leaflet

I have published a wms using the QGIS Cloud and on top of it I am overlaying the same data (countries of Europe), using GeoJSON. Have a look at an example here: http://jsfiddle.net/j21kh7ao/ At a low ...
2
votes
2answers
440 views

How to generate legend in leaflet webmap?

Although I have checked the "Create Legend" option in the qgis2leaf plugin, it did not generate any legend in the output webmap. What am I missing here ?
2
votes
3answers
5k views

Getting WFS data from Geoserver into leaflet

I'm trying to use a ajax call to load WFS data from geoserver into a GeoJson layer in leaflet. When I do the following message in the console: XMLHttpRequest cannot load ...
2
votes
3answers
563 views

How to pull lat/lng from a map canvas and update a database

So if i want to pull out lat/lngs after user clicks on a map canvas (lat/lngs are pulled using any javascript API (leaflet, wax etc.) and add this to a postgresql database using a query, how do i do ...
2
votes
2answers
142 views

great circles in QGIS and export in 3857 webmap

My plan is to visualize great circles in a leaflet webmap. So coming from this great postgis article and R version I thought it would work like this in QGIS: create line from two points, store ...
2
votes
1answer
677 views

Adding a search box to a Leaflet.js example

Consider the example in the following link for Folium: US Employment visualization per county. The result looks like what you see below:     I would like to add a search box to it to be ...
2
votes
2answers
685 views

How to load big geo-data file into web application

I am building a web app where I show details in map. I load data using geojson file (190 mb). I was looking in different possibilities to show the data, here there are: Leaflet GeoJSon: it should ...
2
votes
2answers
920 views

Unable to get Mapbox leaflet-omnivore to load markers from .csv

I'm using the Mapbox.js API to build a really simple web map using a .csv file to place markers with tooltips. I'm trying to use the suggested leaflet-omnivore library to easily parse the csv and ...
2
votes
2answers
2k views

Leaflet export to jpg

Does anybody know if there is a way to export the current view of a Leaflet map to jpg? The setup is as follows: Leaflet is hooked up to an Oracle database. Depending on user interaction, various ...